We've just completed out bankroll building guide for the poker network known as the OnGame Network.  This network is most commonly known for Pokerroom, however it has a variety of other websites out there, with some excellent bonuses.  Please note that this network does not accept US players.  You can read the OnGame Bonus Whoring / Bankroll Building Network Guide here.

On that note, the #2 site on the list is Redkings Poker , and they have some very easy to clear bonuses.   On top of that, they run a monthly $5,000 guaranteed tournament, which gets really no traffic.  Last month it got just 60 qualifiers.  They also only allow up to 100 entrants, so it's something to think about when doing the bonus at Redkings.